I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
dahs dais daws days daisy doughs dassie dis tas dos dews deys taus dows tass doss taos dees daze dace dues duos teas diss taws does dies dose diazo disci douse dowse tasse tawse tease toeas
aahs ahs hahs dahs shahs yeahs as